Albeet l



(No Model.)

A. L. P LATT.

ICE CREAM FREEZER.

Patented Aug. 4, 1885.

IN'VENTOR: ,Jzazt- ATTORNEYS UNITED STATES P TENT @FFICE.

ALBERT L. PLATT, OF BOXVLING GREEN, MISSOURI, ASSIGNOR TO \.ILLIAM B.MCALISTER, JAMES R. MOALISTER, AND JAMES M. HAXVKINS, ALL OF SAME PLACE.

SPECIFICATION forming part of Letters Patent No. 323,732, dated August4., 1885.

Application filed May I, 1985. (No model.)

To ctZZ whom it may concern:

Be it known that I, ALBERT L. PLATI, a citizen of the United States,residing at Bowling Green. in the county of Pike and State of Missouri,have invented certain new and useful Improvements in Ice-Cream Freezers,of which the following is a description.

This invention is an improvement in icecream freezers, and has for anobject to provide a simple construction'of freezer in which the cream orother article it is desired to freeze may be quickly frozen anddischarged from the machine, and in which the several parts will beconveniently detachable for the purpose of repairing, replacing, andcleansing.

The invention consists in certain novel constructions, combinations, andarrangements of. parts, aswill behereinaft er 1i rst full y described,and then pointed out in the claims.

In the drawings, Figure 1 is a side view of my machine, Fig. 2 is an endelevation with dotted motion. Fig. 3 is a vertical longitudinal section.Fig. 4- is a central transverse section of the machine, and Fig. 5 is adetail view of the scraper and its clamping-bolt removed from themachine.

The framing of my machine is preferably formed in two secti0nsan upperone, A, and a lower one, B, preferably hinged together at 0 one end, b,as shown. The top section is formed with side boards, A, and top board,A, and may, when desired, have end boards, A. The lower edges areprovided midwhy their ends with half-round notches a, which fit over the5 t-runnions of the cylinder.

, The lower section, B, comprises side boards, B, and end supports, 0.The side boards have bearings b in their upper edges for the trunnionsof the cylinder. The supportsC are secured between the side boards, B,near the ends of the latter, and are provided with legs O','which extenddownward and are bent laterally outward asuflicient distance so thattheir feet 0 will rest in approximately the 5 plane of the outer end ofthe discharging-trunnion of the cylinder, so that the machine may beconveniently turned onto its side, as indicated indotted lines, Fig. 2.In practice I prefer to secure the feet 0 on the same side of themachine with the discharge-trunnion to the floor or bench by staples Gor similar expedients, as will he understood from Fig. 2. Manifestly,only those feet on the side before referred to need be extendedlaterally, as shown; but for uniformity in appearance and 5 conveniencein manufacture I prefer to make all the legs and feet alike. 7

The cylinder D has trunnions d and (l, which are journaled in thebearings b b. The truanion d is perforated longitudinally at d", so thatwater will readily HOW thereoutand the lumps of ice will be stopped.This trunnion may have ahand-crank attached to it, by which it may berevolved; but I prefer to fix on it a gear-wheel, E, meshed by adrive-pinion, E, having a suitable crank, and arranged about as shown inFig. 1. The trunnion d has an opening, (1 made sufficiently large toadmit the ice and salt, and on such trunnion I cast or suitably secure ahopper, F, usually made in the conical form shown. \Vhen the ma chine isin use, the opening d is closed by a suitable plug, F.

The concave G has side plates, g, which project up on opposite sides ofthe cylinder, and its ends are flanged at g, forming hooks. which catchover the supports 0 and secure the concave in place. This concave, itwill be noticed, fits centrally between its ends snugly up against thelower side of the cylinder, and the portion in front of such cylinderserves as a feed hopper, H, int-o which the cream or other article isplaced. The direction of motion of the cylinder is indicated by thearrows.

The scraper I is located on the opposite side 8 5 of the cylinder fromthe hopper H. One edge or end of this scraper presses against thecylinder, so as to scrape the frozen cream, &e., thereof, and its otherend extends beyond the framing of the machine, so that it will (Uscharge the frozen cream at a point outside of such framing,where it maybe conveniently caught in a dish or other vessel set to receive it. Itis preferred to secure this scraper pivotally on a bolt, J,which extendsthrough one 5 side B, thence through the scraper and the other side B,and is secured by a thumb or other suitable clamping-nut bearing againstone of said side pieces, as shown. By this construction the scraper maybe adjusted on. we

the bolt to set it more tightly against the cylinder, when so desired.

In my machine it will be noticed the feedhopper H is located below theaxis of the cylinder. The object in this location is, that by it thecream, 850., placed in such hopper will, if not immediately ozen andtaken up by the cylinder, be held in the hopper until frozen and takenup, thus avoiding any waste of material; also, by arranging the hopperand the scraper on opposite sides of the cylinder, the cream issubjected to a longer period on the cylinder, and is consequently betterfrozen than if such parts were in closer relation.

In preparing; the machine for use it is turned on one side, as indicatedin dotted lines, Fig. 2, the plug F removed. and the ice and saltsupplied through the opening 1". The plug is then replaced and themachine turned to position for use. Now, by turning the cylinder in thedirection indicated, the cream or other article will be taken up by thecylinder and quickly frozen, so that by time it reaches the scraper itis thoroughly frozen and is discharged in flakes.

\Vhen the ice has melted, the machine may be again turned on its side,and the water will flow out of opening (1 and ice may be resnppliedthrough opening (1.

\Vhile it is preferred to use ice and salt as the re'l'rigt-iani, otherwell-known refrigerants may be employed without departing from theinvention.

By the before-described construction it will be seen that the cylinder,the concave, and scraper may be conveniently detached from the framingin order to properly cleanse and sun the same, as is desirable.

Having thus described my invention, what I claim as new is- 1. Afreezing-cylinder having a hollow trunnion fitted to admit therefrigerant and provided with a hopper supported on and revolving withthe said trunnion, substantially as set forth.

2. As an article of manufacture, the hollow freezingcylinder hereindescribed, having trunnions at its opposite ends, one of saidtrnnnionshaviug an opening fitted to discharge water, and the o herhaving an opening fitted to admit the refngerant, and having its outerend flared, forming a hopper, substantial] y as set forth.

3. The combination of the supports 0, the cylinder, and the concavehaving its ends pro vided with flanges hooked over the supports 0, andhaving side plates projecting up on opposite sides of 'the cylinder,substantially as set forth.

4. The combination of the main frame, the cylinder supported therein andhaving hollow trunnions, one of which isadapted to permit the infeed ofthe refrigerant and the other the discharge of water, and legs securedat. one end to the main frame, and provided at their other ends withfeet adapted to be journaled to a support. whereby the device may beturned upon its side, substantially as set forth.

The above specification of my invention signed by me this 16th day ofApril, 1885.

ALBICR'I L. PLAIT.

Wit nesses:

SOLON O. KrlMoN, CHAS. A. PET'IIL.

